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fix bug in approxPolyDP: calculate distance to a segment, not to a line

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This commit is contained in:
Galina Bykova
2025-12-01 21:22:11 +03:30
parent 1c712fe2ff
commit fc7e70ef4a
2 changed files with 32 additions and 5 deletions
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modules/imgproc/test/test_approxpoly.cpp
+13
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@@ -377,6 +377,19 @@ TEST(Imgproc_ApproxPoly, bad_epsilon)
ASSERT_ANY_THROW(approxPolyDP(inputPoints, outputPoints, eps, false));
}
TEST(Imgproc_ApproxPoly, distace_between_point_and_segment)
{
vector<Point2f> inputPoints = {
{ {0.f, 0.f}, {4.f, 2.f}, {11.f, 1.f}, {8.f, 0.f} }
};
std::vector<Point2f> result;
approxPolyDP(inputPoints, result, 1.9, false);
vector<Point2f> expectedResult = {
{ {0.f, 0.f}, {11.f, 1.f}, {8.f, 0.f} }
};
ASSERT_EQ(result, expectedResult);
}
struct ApproxPolyN: public testing::Test
{
void SetUp()